Continuous atmospheric CO<sub>2</sub>, CH<sub>4</sub> and CO measurements at the Observatoire Pérenne de l'Environnement (OPE) station in France from 2011 to 2018

Conil, Sébastien; Helle, Julie; Langrene, Laurent; Laurent, Olivier; Delmotte, Marc; Ramonet, Michel

doi:https://doi.org/10.5194/amt-12-6361-2019

Articles | Volume 12, issue 12

https://doi.org/10.5194/amt-12-6361-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

The 10th International Carbon Dioxide Conference (ICDC10)...

https://doi.org/10.5194/amt-12-6361-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 12, issue 12

Research article

|

04 Dec 2019

Research article |

| 04 Dec 2019

Continuous atmospheric CO₂, CH₄ and CO measurements at the Observatoire Pérenne de l'Environnement (OPE) station in France from 2011 to 2018

Sébastien Conil, Julie Helle, Laurent Langrene, Olivier Laurent, Marc Delmotte, and Michel Ramonet

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Final revised paper (published on 04 Dec 2019)
Supplement to the final revised paper
Preprint (discussion started on 21 May 2019)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC1: 'Review of "Continuous atmospheric CO2, CH4 and CO measurements at the OPE station in France from 2011 to 2018 by S.Conil, et al"', Anonymous Referee #1, 05 Jun 2019
- AC1: 'Response to reviewer #1', S. Conil, 28 Aug 2019
RC2: 'Review of paper entitled "Continuous atmospheric CO2, CH4 and CO measurements at the OPE station in France from 2011 to 2018"', Anonymous Referee #2, 02 Jul 2019
- AC2: 'Response to reviewer #2', S. Conil, 28 Aug 2019

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

AR by Anna Wenzel on behalf of the Authors (29 Aug 2019) Author's response Manuscript

ED: Publish subject to minor revisions (review by editor) (12 Sep 2019) by Christoph Zellweger

AR by Lorena Grabowski on behalf of the Authors (24 Sep 2019) Author's response

ED: Publish subject to technical corrections (25 Sep 2019) by Christoph Zellweger

Dear Sébastien Conil

Thank you very much for addressing all comments that I made after the reviews by the two referees. The paper significantly improved. However, a few more issues and typos need to be corrected before publication. They are listed below, but the list might be incomplete. I strongly recommend that the paper is again carefully checked before publication.
Best regards,

Christoph Zellweger

Page 6, line 5: "way" instead of "ways".
Page 7, line 23: Full stop is missing.
Page 7, line 28: Check sentence: "the two or three two or three…"
Page 8, lines 4-8: Scales still need to be checked. There is no WMOX2007 scale for N2O. Also replace NOAA-2006A with WMOX2006A for N2O.
Page 8, line 21: "analyser" instead of "analysers".
Page 16, line 9: "below" instead of "under".
Page 21, line 12: no space "forCH4"; similar issues can be found throughout the document, please check.
Page 21, line 22: "display" instead of "displays".
Page 23, line 29: ".."
Page 24, line 2: wrong link.
Page 26, line 13: "decrease has declined": I am not sure if this is correct. Do you mean that the "decrease has continued, and annual mole fractions are now well below 0.2 ppm at …."? (remark: but they are below 0.2 ppm since a long time…).
Page 26, line 18: wrong link.
Page 28, … wrong link.
Page 28, line 24-26: Consider rewriting. "mass" instead of "masse".
Page 28, line 27ff: This is a list of results, but I miss the context / the conclusions. Instead of just repeating results, I recommend to formulate real conclusion, e.g. "The results of the field CMR show that …".
Figure 12: Change the label of the x-axis to "month"; the cluster itself is not shown on the axis.
Table S1: "days" instead of "jours"
Compulsory sections (data availability and author contributions) are missing.

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AR by S. Conil on behalf of the Authors (03 Oct 2019) Author's response Manuscript

Post-review adjustments

AA: Author's adjustment | EA: Editor approval

AA by S. Conil on behalf of the Authors (28 Nov 2019) Author's adjustment Manuscript

EA: Adjustments approved (28 Nov 2019) by Christoph Zellweger

Short summary

Continuous measurements of greenhouse gases using high-precision spectrometers started in 2011 on a tall tower with three sampling inlets at 10 m, 50 m and 120 m above the ground at the OPE station, in the eastern part of France. The measurement strategy for carbon dioxide (CO₂), methane (CH₄) and carbon monoxide (CO) follows the ICOS recommendations. Over the 2011–2018 period, the CO₂ and CH₄ data show trends with annual growth rates of 2.4 ppm yr⁻¹ and 8.8 ppb yr⁻¹ at the 120 m level.

Continuous atmospheric CO2, CH4 and CO measurements at the Observatoire Pérenne de l'Environnement (OPE) station in France from 2011 to 2018

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Interactive discussion

Peer-review completion

Post-review adjustments

Continuous atmospheric CO₂, CH₄ and CO measurements at the Observatoire Pérenne de l'Environnement (OPE) station in France from 2011 to 2018